condition mean min max ZT0-3 114.05000000000001 114.05000000000001 114.05000000000001 ZT4-7 69.8 69.8 69.8 ZT8-11 103.3 103.3 103.3 ZT12-15 115.05 115.05 115.05 ZT16-19 83.65 83.65 83.65 ZT20-23 97.85 97.85 97.85